main.c

   1 /* -*- mode: c; tab-width: 4; c-basic-offset: 4 -*- */
   2 /******************************* main.c ****************************************
   3
   4         Copyright (c) 1997 A. Krall, R. Grafl, M. Gschwind, M. Probst
   5
   6         See file COPYRIGHT for information on usage and disclaimer of warranties
   7
   8         Enthaelt die Funktion main() und die Variablen fuer die
   9         globalen Optionen.
  10         Dieser Modul erledigt folgende Aufgaben:
  11            - Bearbeiten der command-line-options
  12            - Aufrufen aller Initialisierungsroutinen
  13            - Aufrufen des Classloaders
  14            - Starten der main - Methode
  15
  16         Authors: Reinhard Grafl      EMAIL: cacao@complang.tuwien.ac.at
  17         Changes: Andi Krall          EMAIL: cacao@complang.tuwien.ac.at
  18                  Mark Probst         EMAIL: cacao@complang.tuwien.ac.at
  19
  20         Last Change: 1997/10/29
  21
  22 *******************************************************************************/
  23
  24 #include "global.h"
  25
  26 #include "tables.h"
  27 #include "compiler.h"
  28 #include "ncomp/ncomp.h"
  29 #include "loader.h"
  30
  31 #include "asmpart.h"
  32 #include "builtin.h"
  33 #include "native.h"
  34
  35 #include "threads/thread.h"            /* schani */
  36
  37 bool compileall = false;
  38 int  newcompiler = true;
  39 bool verbose =  false;
  40
  41 #ifndef USE_THREADS
  42 void **stackbottom = 0;
  43 #endif
  44
  45
  46 /********************* interne Funktion: get_opt *****************************
  47
  48         liest die n"achste Option aus der Kommandozeile
  49
  50 ******************************************************************************/
  51
  52 #define OPT_DONE  -1
  53 #define OPT_ERROR  0
  54 #define OPT_IGNORE 1
  55
  56 #define OPT_CLASSPATH   2
  57 #define OPT_D           3
  58 #define OPT_MS          4
  59 #define OPT_MX          5
  60 #define OPT_VERBOSE1    6
  61 #define OPT_VERBOSE     7
  62 #define OPT_VERBOSEGC   8
  63 #define OPT_VERBOSECALL 9
  64 #define OPT_IEEE        10
  65 #define OPT_SOFTNULL    11
  66 #define OPT_TIME        12
  67 #define OPT_STAT        13
  68 #define OPT_LOG         14
  69 #define OPT_CHECK       15
  70 #define OPT_LOAD        16
  71 #define OPT_METHOD      17
  72 #define OPT_SIGNATURE   18
  73 #define OPT_SHOW        19
  74 #define OPT_ALL         20
  75 #define OPT_OLD         21
  76
  77 struct { char *name; bool arg; int value; } opts[] = {
  78   { "classpath",   true,   OPT_CLASSPATH },
  79   { "D",           true,   OPT_D },
  80   { "ms",          true,   OPT_MS },
  81   { "mx",          true,   OPT_MX },
  82   { "noasyncgc",   false,  OPT_IGNORE },
  83   { "noverify",    false,  OPT_IGNORE },
  84   { "oss",         true,   OPT_IGNORE },
  85   { "ss",          true,   OPT_IGNORE },
  86   { "v",           false,  OPT_VERBOSE1 },
  87   { "verbose",     false,  OPT_VERBOSE },
  88   { "verbosegc",   false,  OPT_VERBOSEGC },
  89   { "verbosecall", false,  OPT_VERBOSECALL },
  90   { "ieee",        false,  OPT_IEEE },
  91   { "softnull",    false,  OPT_SOFTNULL },
  92   { "time",        false,  OPT_TIME },
  93   { "stat",        false,  OPT_STAT },
  94   { "log",         true,   OPT_LOG },
  95   { "c",           true,   OPT_CHECK },
  96   { "l",           false,  OPT_LOAD },
  97   { "m",           true,   OPT_METHOD },
  98   { "sig",         true,   OPT_SIGNATURE },
  99   { "s",           true,   OPT_SHOW },
 100   { "all",         false,  OPT_ALL },
 101   { "old",         false,  OPT_OLD },
 102   { NULL,  false, 0 }
 103 };
 104
 105 static int opt_ind = 1;
 106 static char *opt_arg;
 107
 108 static int get_opt (int argc, char **argv)
 109 {
 110         char *a;
 111         int i;
 112
 113         if (opt_ind >= argc) return OPT_DONE;
 114
 115         a = argv[opt_ind];
 116         if (a[0] != '-') return OPT_DONE;
 117
 118         for (i=0; opts[i].name; i++) {
 119                 if (! opts[i].arg) {
 120                         if (strcmp(a+1, opts[i].name) == 0) {  /* boolean option found */
 121                                 opt_ind++;
 122                                 return opts[i].value;
 123                                 }
 124                         }
 125                 else {
 126                         if (strcmp(a+1, opts[i].name) == 0) { /* parameter option found */
 127                                 opt_ind++;
 128                                 if (opt_ind < argc) {
 129                                         opt_arg = argv[opt_ind];
 130                                         opt_ind++;
 131                                         return opts[i].value;
 132                                         }
 133                                 return OPT_ERROR;
 134                                 }
 135                         else {
 136                                 size_t l = strlen(opts[i].name);
 137                                 if (strlen(a+1) > l) {
 138                                         if (memcmp (a+1, opts[i].name, l)==0) {
 139                                                 opt_ind++;
 140                                                 opt_arg = a+1+l;
 141                                                 return opts[i].value;
 142                                                 }
 143                                         }
 144                                 }
 145                         }
 146                 } /* end for */
 147
 148         return OPT_ERROR;
 149 }
 150
 151
 152
 153
 154 /******************** interne Funktion: print_usage ************************
 155
 156 Gibt die richtige Aufrufsyntax des JavaVM-Compilers auf stdout aus.
 157
 158 ***************************************************************************/
 159
 160 static void print_usage()
 161 {
 162         printf ("USAGE: cacao [options] classname [program arguments\n");
 163         printf ("Options:\n");
 164         printf ("          -classpath path ...... specify a path to look for classes\n");
 165         printf ("          -Dpropertyname=value . add an entry to the property list\n");
 166         printf ("          -mx maxmem[k|m] ...... specify the size for the heap\n");
 167         printf ("          -ms initmem[k|m] ..... specify the initial size for the heap\n");
 168         printf ("          -v ................... write state-information\n");
 169         printf ("          -verbose ............. write more information\n");
 170         printf ("          -verbosegc ........... write message for each GC\n");
 171         printf ("          -verbosecall ......... write message for each call\n");
 172         printf ("          -ieee ................ use ieee compliant arithmetic\n");
 173         printf ("          -softnull ............ use software nullpointer check\n");
 174         printf ("          -time ................ measure the runtime\n");
 175         printf ("          -stat ................ detailed compiler statistics\n");
 176         printf ("          -log logfile ......... specify a name for the logfile\n");
 177         printf ("          -c(heck) b(ounds...... don't check array bounds\n");
 178         printf ("                   s(ync) ...... don't check for synchronization\n");
 179         printf ("          -l ................... don't start the class after loading\n");
 180         printf ("          -all ................. compile all methods, no execution\n");
 181         printf ("          -old ................. use old JIT compiler\n");
 182         printf ("          -m ................... compile only a specific method\n");
 183         printf ("          -sig ................. specify signature for a specific method\n");
 184         printf ("          -s(how)m(ethods) ..... show all methods&fields of a class\n");
 185         printf ("                 c(onstants) ... show the constant pool\n");
 186         printf ("                 a(ssembler) ... show disassembled listing\n");
 187         printf ("                 d(atasegment).. show data segment listing\n");
 188         printf ("                 s(tack) ....... show stack for every javaVM-command\n");
 189         printf ("                 i(ntermediate). show intermediate representation\n");
 190         printf ("                 u(nicode) ..... show the unicode - hash\n");
 191 }
 192
 193
 194
 195 /***************************** Funktion: print_times *********************
 196
 197         gibt eine Aufstellung der verwendeten CPU-Zeit aus
 198
 199 **************************************************************************/
 200
 201 static void print_times()
 202 {
 203         long int totaltime = getcputime();
 204         long int runtime = totaltime - loadingtime - compilingtime;
 205
 206         sprintf (logtext, "Time for loading classes: %ld secs, %ld millis",
 207              loadingtime / 1000000, (loadingtime % 1000000) / 1000);
 208         dolog();
 209         sprintf (logtext, "Time for compiling code:  %ld secs, %ld millis",
 210              compilingtime / 1000000, (compilingtime % 1000000) / 1000);
 211         dolog();
 212         sprintf (logtext, "Time for running program: %ld secs, %ld millis",
 213              runtime / 1000000, (runtime % 1000000) / 1000);
 214         dolog();
 215         sprintf (logtext, "Total time: %ld secs, %ld millis",
 216              totaltime / 1000000, (totaltime % 1000000) / 1000);
 217         dolog();
 218 }
 219
 220
 221
 222
 223
 224
 225 /***************************** Funktion: print_stats *********************
 226
 227         outputs detailed compiler statistics
 228
 229 **************************************************************************/
 230
 231 static void print_stats()
 232 {
 233         sprintf (logtext, "Number of JitCompiler Calls: %d", count_jit_calls);
 234         dolog();
 235         sprintf (logtext, "Number of compiled Methods: %d", count_methods);
 236         dolog();
 237         sprintf (logtext, "Number of max basic blocks per method: %d", count_max_basic_blocks);
 238         dolog();
 239         sprintf (logtext, "Number of compiled basic blocks: %d", count_basic_blocks);
 240         dolog();
 241         sprintf (logtext, "Number of max JavaVM-Instructions per method: %d", count_max_javainstr);
 242         dolog();
 243         sprintf (logtext, "Number of compiled JavaVM-Instructions: %d", count_javainstr);
 244         dolog();
 245         sprintf (logtext, "Size of compiled JavaVM-Instructions:   %d(%d)", count_javacodesize,
 246                                                       count_javacodesize - count_methods * 18);
 247         dolog();
 248         sprintf (logtext, "Size of compiled Exception Tables:      %d", count_javaexcsize);
 249         dolog();
 250         sprintf (logtext, "Value of extended instruction set var:  %d", has_ext_instr_set);
 251         dolog();
 252         sprintf (logtext, "Number of Alpha-Instructions: %d", count_code_len >> 2);
 253         dolog();
 254         sprintf (logtext, "Number of Spills: %d", count_spills);
 255         dolog();
 256         sprintf (logtext, "Number of Activ    Pseudocommands: %5d", count_pcmd_activ);
 257         dolog();
 258         sprintf (logtext, "Number of Drop     Pseudocommands: %5d", count_pcmd_drop);
 259         dolog();
 260         sprintf (logtext, "Number of Const    Pseudocommands: %5d (zero:%5d)", count_pcmd_load, count_pcmd_zero);
 261         dolog();
 262         sprintf (logtext, "Number of ConstAlu Pseudocommands: %5d (cmp: %5d, store:%5d)", count_pcmd_const_alu, count_pcmd_const_bra, count_pcmd_const_store);
 263         dolog();
 264         sprintf (logtext, "Number of Move     Pseudocommands: %5d", count_pcmd_move);
 265         dolog();
 266         sprintf (logtext, "Number of Load     Pseudocommands: %5d", count_load_instruction);
 267         dolog();
 268         sprintf (logtext, "Number of Store    Pseudocommands: %5d (combined: %5d)", count_pcmd_store, count_pcmd_store - count_pcmd_store_comb);
 269         dolog();
 270         sprintf (logtext, "Number of OP       Pseudocommands: %5d", count_pcmd_op);
 271         dolog();
 272         sprintf (logtext, "Number of DUP      Pseudocommands: %5d", count_dup_instruction);
 273         dolog();
 274         sprintf (logtext, "Number of Mem      Pseudocommands: %5d", count_pcmd_mem);
 275         dolog();
 276         sprintf (logtext, "Number of Method   Pseudocommands: %5d", count_pcmd_met);
 277         dolog();
 278         sprintf (logtext, "Number of Branch   Pseudocommands: %5d (rets:%5d, Xrets: %5d)",
 279                           count_pcmd_bra, count_pcmd_return, count_pcmd_returnx);
 280         dolog();
 281         sprintf (logtext, "Number of Table    Pseudocommands: %5d", count_pcmd_table);
 282         dolog();
 283         sprintf (logtext, "Number of Useful   Pseudocommands: %5d", count_pcmd_table +
 284                  count_pcmd_bra + count_pcmd_load + count_pcmd_mem + count_pcmd_op);
 285         dolog();
 286         sprintf (logtext, "Number of Null Pointer Checks:     %5d", count_check_null);
 287         dolog();
 288         sprintf (logtext, "Number of Array Bound Checks:      %5d", count_check_bound);
 289         dolog();
 290         sprintf (logtext, "Number of Try-Blocks: %d", count_tryblocks);
 291         dolog();
 292         sprintf (logtext, "Maximal count of stack elements:   %d", count_max_new_stack);
 293         dolog();
 294         sprintf (logtext, "Upper bound of max stack elements: %d", count_upper_bound_new_stack);
 295         dolog();
 296         sprintf (logtext, "Distribution of stack sizes at block boundary");
 297         dolog();
 298         sprintf (logtext, "    0    1    2    3    4    5    6    7    8    9    >=10");
 299         dolog();
 300         sprintf (logtext, "%5d%5d%5d%5d%5d%5d%5d%5d%5d%5d%5d", count_block_stack[0],
 301                 count_block_stack[1],count_block_stack[2],count_block_stack[3],count_block_stack[4],
 302                 count_block_stack[5],count_block_stack[6],count_block_stack[7],count_block_stack[8],
 303                 count_block_stack[9],count_block_stack[10]);
 304         dolog();
 305         sprintf (logtext, "Distribution of store stack depth");
 306         dolog();
 307         sprintf (logtext, "    0    1    2    3    4    5    6    7    8    9    >=10");
 308         dolog();
 309         sprintf (logtext, "%5d%5d%5d%5d%5d%5d%5d%5d%5d%5d%5d", count_store_depth[0],
 310                 count_store_depth[1],count_store_depth[2],count_store_depth[3],count_store_depth[4],
 311                 count_store_depth[5],count_store_depth[6],count_store_depth[7],count_store_depth[8],
 312                 count_store_depth[9],count_store_depth[10]);
 313         dolog();
 314         sprintf (logtext, "Distribution of store creator chains first part");
 315         dolog();
 316         sprintf (logtext, "    0    1    2    3    4    5    6    7    8    9  ");
 317         dolog();
 318         sprintf (logtext, "%5d%5d%5d%5d%5d%5d%5d%5d%5d%5d", count_store_length[0],
 319                 count_store_length[1],count_store_length[2],count_store_length[3],count_store_length[4],
 320                 count_store_length[5],count_store_length[6],count_store_length[7],count_store_length[8],
 321                 count_store_length[9]);
 322         dolog();
 323         sprintf (logtext, "Distribution of store creator chains second part");
 324         dolog();
 325         sprintf (logtext, "   10   11   12   13   14   15   16   17   18   19  >=20");
 326         dolog();
 327         sprintf (logtext, "%5d%5d%5d%5d%5d%5d%5d%5d%5d%5d%5d", count_store_length[10],
 328                 count_store_length[11],count_store_length[12],count_store_length[13],count_store_length[14],
 329                 count_store_length[15],count_store_length[16],count_store_length[17],count_store_length[18],
 330                 count_store_length[19],count_store_length[20]);
 331         dolog();
 332         sprintf (logtext, "Distribution of analysis iterations");
 333         dolog();
 334         sprintf (logtext, "    1    2    3    4    >=5");
 335         dolog();
 336         sprintf (logtext, "%5d%5d%5d%5d%5d", count_analyse_iterations[0],count_analyse_iterations[1],
 337                 count_analyse_iterations[2],count_analyse_iterations[3],count_analyse_iterations[4]);
 338         dolog();
 339         sprintf (logtext, "Distribution of basic blocks per method");
 340         dolog();
 341         sprintf (logtext, " <= 5 <=10 <=15 <=20 <=30 <=40 <=50 <=75  >75");
 342         dolog();
 343         sprintf (logtext, "%5d%5d%5d%5d%5d%5d%5d%5d%5d", count_method_bb_distribution[0],
 344                 count_method_bb_distribution[1],count_method_bb_distribution[2],count_method_bb_distribution[3],
 345                 count_method_bb_distribution[4],count_method_bb_distribution[5],count_method_bb_distribution[6],
 346                 count_method_bb_distribution[7],count_method_bb_distribution[8]);
 347         dolog();
 348         sprintf (logtext, "Distribution of basic block sizes");
 349         dolog();
 350         sprintf (logtext,
 351         "  1    2    3    4   5   6   7   8   9  10 <13 <15 <17 <19 <21 <26 <31 >30");
 352         dolog();
 353         sprintf (logtext, "%3d%5d%5d%5d%4d%4d%4d%4d%4d%4d%4d%4d%4d%4d%4d%4d%4d%4d",
 354                 count_block_size_distribution[0], count_block_size_distribution[1], count_block_size_distribution[2],
 355                 count_block_size_distribution[3], count_block_size_distribution[4], count_block_size_distribution[5],
 356                 count_block_size_distribution[6], count_block_size_distribution[7], count_block_size_distribution[8],
 357                 count_block_size_distribution[9], count_block_size_distribution[10],count_block_size_distribution[11],
 358                 count_block_size_distribution[12],count_block_size_distribution[13],count_block_size_distribution[14],
 359                 count_block_size_distribution[15],count_block_size_distribution[16],count_block_size_distribution[17]);
 360         dolog();
 361         sprintf (logtext, "Size of Code Area (Kb):  %10.3f", (float) count_code_len / 1024);
 362         dolog();
 363         sprintf (logtext, "Size of data Area (Kb):  %10.3f", (float) count_data_len / 1024);
 364         dolog();
 365         sprintf (logtext, "Size of Class Infos (Kb):%10.3f", (float) (count_class_infos) / 1024);
 366         dolog();
 367         sprintf (logtext, "Size of Const Pool (Kb): %10.3f", (float) (count_const_pool_len + count_unicode_len) / 1024);
 368         dolog();
 369         sprintf (logtext, "Size of Vftbl (Kb):      %10.3f", (float) count_vftbl_len / 1024);
 370         dolog();
 371         sprintf (logtext, "Size of comp stub (Kb):  %10.3f", (float) count_cstub_len / 1024);
 372         dolog();
 373         sprintf (logtext, "Size of native stub (Kb):%10.3f", (float) count_nstub_len / 1024);
 374         dolog();
 375         sprintf (logtext, "Size of Unicode (Kb):    %10.3f", (float) count_unicode_len / 1024);
 376         dolog();
 377         sprintf (logtext, "Size of VMCode (Kb):     %10.3f(%d)", (float) count_vmcode_len / 1024,
 378                                                       count_vmcode_len - 18 * count_all_methods);
 379         dolog();
 380         sprintf (logtext, "Size of ExTable (Kb):    %10.3f", (float) count_extable_len / 1024);
 381         dolog();
 382         sprintf (logtext, "Number of loaded Methods: %d\n\n", count_all_methods);
 383         dolog();
 384 }
 385
 386
 387 /********** Funktion: class_compile_methods   (nur f"ur Debug-Zwecke) ********/
 388
 389 void class_compile_methods ()
 390 {
 391         int        i;
 392         classinfo  *c;
 393         methodinfo *m;
 394
 395         c = list_first (&linkedclasses);
 396         while (c) {
 397                 for (i = 0; i < c -> methodscount; i++) {
 398                         m = &(c->methods[i]);
 399                         if (m->jcode) {
 400                                 if (newcompiler)
 401                                         (void) new_compile(m);
 402                                 else
 403                                         (void) compiler_compile(m);
 404                                 }
 405                         }
 406                 c = list_next (&linkedclasses, c);
 407                 }
 408 }
 409
 410
 411 /************************** Funktion: main *******************************
 412
 413    Das Hauptprogramm.
 414    Wird vom System zu Programstart aufgerufen (eh klar).
 415
 416 **************************************************************************/
 417
 418
 419 int main(int argc, char **argv)
 420 {
 421         s4 i,j;
 422         char *cp;
 423         classinfo *topclass;
 424         java_objectheader *exceptionptr;
 425         void *dummy;
 426
 427    /********** interne (nur fuer main relevante Optionen) **************/
 428
 429         char logfilename[200] = "";
 430         u4 heapsize = 16000000;
 431         u4 heapstartsize = 200000;
 432         char classpath[500] = ".:/usr/local/lib/java/classes";
 433         bool showmethods = false;
 434         bool showconstantpool = false;
 435         bool showunicode = false;
 436         bool startit = true;
 437         char *specificmethodname = NULL;
 438         char *specificsignature = NULL;
 439
 440 #ifndef USE_THREADS
 441         stackbottom = &dummy;
 442 #endif
 443
 444
 445         atexit(clear_thread_flags);
 446
 447    /************ Infos aus der Environment lesen ************************/
 448
 449         cp = getenv ("CLASSPATH");
 450         if (cp) {
 451                 strcpy (classpath, cp);
 452                 }
 453
 454    /***************** Interpretieren der Kommandozeile *****************/
 455
 456    checknull = false;
 457    checkfloats = false;
 458
 459         while ( (i = get_opt(argc,argv)) != OPT_DONE) {
 460
 461                 switch (i) {
 462                         case OPT_IGNORE: break;
 463
 464                         case OPT_CLASSPATH:
 465                                 strcpy (classpath + strlen(classpath), ":");
 466                                 strcpy (classpath + strlen(classpath), opt_arg);
 467                                 break;
 468
 469                         case OPT_D:
 470                                 {
 471                                 int n,l=strlen(opt_arg);
 472                                 for (n=0; n<l; n++) {
 473                                         if (opt_arg[n]=='=') {
 474                                                 opt_arg[n] = '\0';
 475                                                 attach_property (opt_arg, opt_arg+n+1);
 476                                                 goto didit;
 477                                                 }
 478                                         }
 479                                 print_usage();
 480                                 exit(10);
 481
 482                                 didit: ;
 483                                 }
 484                                 break;
 485
 486                         case OPT_MS:
 487                         case OPT_MX:
 488                                 if (opt_arg[strlen(opt_arg)-1] == 'k') {
 489                                         j = 1024 * atoi(opt_arg);
 490                                         }
 491                                 else if (opt_arg[strlen(opt_arg)-1] == 'm') {
 492                                         j = 1024 * 1024 * atoi(opt_arg);
 493                                         }
 494                                 else j = atoi(opt_arg);
 495
 496                                 if (i==OPT_MX) heapsize = j;
 497                                 else heapstartsize = j;
 498                                 break;
 499
 500                         case OPT_VERBOSE1:
 501                                 verbose = true;
 502                                 break;
 503
 504                         case OPT_VERBOSE:
 505                                 verbose = true;
 506                                 loadverbose = true;
 507                                 initverbose = true;
 508                                 compileverbose = true;
 509                                 break;
 510
 511                         case OPT_VERBOSEGC:
 512                                 collectverbose = true;
 513                                 break;
 514
 515                         case OPT_VERBOSECALL:
 516                                 runverbose = true;
 517                                 break;
 518
 519                         case OPT_IEEE:
 520                                 checkfloats = true;
 521                                 break;
 522
 523                         case OPT_SOFTNULL:
 524                                 checknull = true;
 525                                 break;
 526
 527                         case OPT_TIME:
 528                                 getcompilingtime = true;
 529                                 getloadingtime = true;
 530                                 break;
 531
 532                         case OPT_STAT:
 533                                 statistics = true;
 534                                 break;
 535
 536                         case OPT_LOG:
 537                                 strcpy (logfilename, opt_arg);
 538                                 break;
 539
 540
 541                         case OPT_CHECK:
 542                         for (j=0; j<strlen(opt_arg); j++) {
 543                                 switch (opt_arg[j]) {
 544                                 case 'b': checkbounds=false; break;
 545                                         case 's': checksync=false; break;
 546                                 default:  print_usage();
 547                                           exit(10);
 548                                 }
 549                                 }
 550                         break;
 551
 552                         case OPT_LOAD:
 553                                 startit = false;
 554                                 makeinitializations = false;
 555                                 break;
 556
 557                         case OPT_METHOD:
 558                                 startit = false;
 559                                 specificmethodname = opt_arg;
 560                                 makeinitializations = false;
 561                         break;
 562
 563                         case OPT_SIGNATURE:
 564                                 specificsignature = opt_arg;
 565                         break;
 566
 567                         case OPT_ALL:
 568                                 compileall = true;
 569                                 startit = false;
 570                                 makeinitializations = false;
 571                         break;
 572
 573                         case OPT_OLD:
 574                                 newcompiler = false;
 575                                 checknull = true;
 576                         break;
 577
 578                 case OPT_SHOW:       /* Anzeigeoptionen */
 579                         for (j=0; j<strlen(opt_arg); j++) {
 580                                 switch (opt_arg[j]) {
 581                                 case 'm':  showmethods=true; break;
 582                                 case 'c':  showconstantpool=true; break;
 583                                 case 'a':  showdisassemble=true; compileverbose=true; break;
 584                                 case 's':  showstack=true; compileverbose=true; break;
 585                                 case 'i':  showintermediate=true; compileverbose=true; break;
 586                                 case 'u':  showunicode=true; break;
 587                                 default:   print_usage();
 588                                        exit(10);
 589                                 }
 590                                 }
 591                         break;
 592
 593                         default:
 594                                 print_usage();
 595                                 exit(10);
 596                         }
 597
 598
 599                 }
 600
 601
 602         if (opt_ind >= argc) {
 603                 print_usage ();
 604                 exit(10);
 605                 }
 606
 607
 608    /**************************** Programmstart *****************************/
 609
 610         log_init (logfilename);
 611         if (verbose) {
 612                 log_text (
 613                 "CACAO started -------------------------------------------------------");
 614                 }
 615
 616         suck_init (classpath);
 617         native_setclasspath (classpath);
 618
 619         unicode_init();
 620         heap_init(heapsize, heapstartsize, &dummy);
 621         loader_init();
 622         compiler_init();
 623         ncomp_init();
 624
 625         native_loadclasses ();
 626
 627
 628    /*********************** JAVA-Klassen laden  ***************************/
 629
 630         cp = argv[opt_ind++];
 631         for (i=strlen(cp)-1; i>=0; i--) {     /* Punkte im Klassennamen */
 632                 if (cp[i]=='.') cp[i]='/';        /* auf slashes umbauen */
 633                 }
 634
 635         topclass = loader_load ( unicode_new_char (cp) );
 636
 637         loader_compute_subclasses();
 638
 639         gc_init();
 640
 641 #ifdef USE_THREADS
 642         initThreads((u1*)&dummy);                   /* schani */
 643 #endif
 644
 645    /************************* Arbeitsroutinen starten ********************/
 646
 647         if (startit) {
 648                 methodinfo *mainmethod;
 649                 java_objectarray *a;
 650
 651                 heap_addreference((void**) &a);
 652
 653                 mainmethod = class_findmethod (
 654                                 topclass,
 655                                 unicode_new_char ("main"),
 656                                 unicode_new_char ("([Ljava/lang/String;)V")
 657                                 );
 658                 if (!mainmethod) panic ("Can not find method 'void main(String[])'");
 659                 if ((mainmethod->flags & ACC_STATIC) != ACC_STATIC) panic ("main is not static!");
 660
 661                 a = builtin_anewarray (argc - opt_ind, class_java_lang_String);
 662                 for (i=opt_ind; i<argc; i++) {
 663                         a->data[i-opt_ind] = javastring_new (unicode_new_char (argv[i]) );
 664                         }
 665                 exceptionptr = asm_calljavamethod (mainmethod, a, NULL,NULL,NULL );
 666
 667                 if (exceptionptr) {
 668                         printf ("#### Program has thrown: ");
 669                         unicode_display (exceptionptr->vftbl->class->name);
 670                         printf ("\n");
 671                         }
 672
 673 /*              killThread(currentThread); */
 674
 675                 }
 676
 677         /************* Auf Wunsch alle Methode "ubersetzen ********************/
 678
 679         if (compileall) {
 680                 class_compile_methods();
 681                 }
 682
 683
 684         /******** Auf Wunsch eine spezielle Methode "ubersetzen ***************/
 685
 686         if (specificmethodname) {
 687                 methodinfo *m;
 688                 if (specificsignature)
 689                         m = class_findmethod(topclass,
 690                                         unicode_new_char(specificmethodname),
 691                                         unicode_new_char(specificsignature));
 692                 else
 693                         m = class_findmethod(topclass,
 694                                         unicode_new_char(specificmethodname), NULL);
 695                 if (!m) panic ("Specific method not found");
 696                 if (newcompiler)
 697                         (void) new_compile(m);
 698                 else
 699                         (void) compiler_compile(m);
 700                 }
 701
 702         /********************* Debug-Tabellen ausgeben ************************/
 703
 704         if (showmethods) class_showmethods (topclass);
 705         if (showconstantpool)  class_showconstantpool (topclass);
 706         if (showunicode)       unicode_show ();
 707
 708
 709
 710    /************************ Freigeben aller Resourcen *******************/
 711
 712         compiler_close ();
 713         loader_close ();
 714         heap_close ();
 715         unicode_close ( literalstring_free );
 716
 717
 718    /* Endemeldung ausgeben und mit entsprechendem exit-Status terminieren */
 719
 720         if (verbose || getcompilingtime || statistics) {
 721                 log_text ("CACAO terminated");
 722                 if (statistics)
 723                         print_stats ();
 724                 if (getcompilingtime)
 725                         print_times ();
 726                 mem_usagelog(1);
 727                 }
 728
 729         exit(0);
 730         return 1;
 731 }
 732
 733
 734
 735 /************************************ SHUTDOWN-Funktion *********************************
 736
 737         Terminiert das System augenblicklich, ohne den Speicher
 738         explizit freizugeben (eigentlich nur f"ur abnorme
 739         Programmterminierung)
 740
 741 *****************************************************************************************/
 742
 743 void cacao_shutdown(s4 status)
 744 {
 745         if (verbose || getcompilingtime || statistics) {
 746                 log_text ("CACAO terminated by shutdown");
 747                 if (statistics)
 748                         print_stats ();
 749                 if (getcompilingtime)
 750                         print_times ();
 751                 mem_usagelog(0);
 752                 sprintf (logtext, "Exit status: %d\n", (int) status);
 753                 dolog();
 754                 }
 755
 756         exit(status);
 757 }